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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $30.3B
1-Year Est. Return 33.75%
This Fund
S&P 500
This Quarter Est. Return
+8.82%
1 Year Est. Return
+33.75%
3 Year Est. Return
+108.55%
5 Year Est. Return
+126.9%
10 Year Est. Return
+788.31%
AUM
$27.9B
AUM Growth
+$434M
Cap. Flow
-$1.39B
Cap. Flow %
-4.97%
Top 10 Hldgs %
16.81%
Holding
485
New
38
Increased
170
Reduced
217
Closed
52

Top Buys

Rank Stock Value
1
RCI icon
Rogers Communications
RCI
+$124M
2
WEX icon
WEX
WEX
+$108M
3
DXCM icon
DexCom
DXCM
+$100M
4
TSM icon
TSMC
TSM
+$99.8M
5
YELP icon
Yelp
YELP
+$93.8M

Top Sells

Rank Stock Value
1
ORLY icon
O'Reilly Automotive
ORLY
+$155M
2
SBNY
Signature Bank
SBNY
+$152M
3
ODFL icon
Old Dominion Freight Line
ODFL
+$132M
4
BABA icon
Alibaba
BABA
+$128M
5
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$119M

Sector Composition

Rank Sector Weight
1 Consumer Discretionary 15.32%
2 Industrials 13.97%
3 Financials 13.47%
4 Technology 12.68%
5 Healthcare 12.14%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
EDN
401
Edenor
EDN
$1.05B
$1.08M ﹤0.01%
27,256
-1,587
-6% -$53.1K
IWO icon
402
iShares Russell 2000 Growth ETF
IWO
$14.9B
$1.08M ﹤0.01%
6,040
-117,920
-95% -$20M
OC icon
403
Owens Corning
OC
$12.2B
$1.05M ﹤0.01%
13,533
+969
+8% +$67.8K
LULU icon
404
lululemon athletica
LULU
$14.5B
$949K ﹤0.01%
15,246
+2,290
+18% +$138K
THO icon
405
Thor Industries
THO
$4.14B
$944K ﹤0.01%
+7,495
New +$808K
FBIN icon
406
Fortune Brands Innovations
FBIN
$5.73B
$939K ﹤0.01%
16,348
-1,707
-9% -$94.5K
PNW icon
407
Pinnacle West Capital
PNW
$12B
$934K ﹤0.01%
11,051
+28
+0.3% +$2.45K
DNKN
408
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$915K ﹤0.01%
+17,236
New +$915K
ATO icon
409
Atmos Energy
ATO
$28.4B
$895K ﹤0.01%
10,674
+27
+0.3% +$2.33K
NI icon
410
NiSource
NI
$20B
$873K ﹤0.01%
34,122
+2,373
+7% +$62.4K
PACW
411
DELISTED
PacWest Bancorp
PACW
$871K ﹤0.01%
17,239
+44
+0.3% +$2.06K
BBAR icon
412
BBVA Argentina
BBAR
$3.53B
$859K ﹤0.01%
42,142
-2,411
-5% -$41.7K
MAN icon
413
ManpowerGroup
MAN
$2.63B
$848K ﹤0.01%
7,201
-996
-12% -$111K
ZION icon
414
Zions Bancorporation
ZION
$10.3B
$847K ﹤0.01%
17,949
+46
+0.3% +$2.05K
VISN
415
Vistance Networks Inc
VISN
$2.63B
$843K ﹤0.01%
25,386
+64
+0.3% +$2.19K
CDNS icon
416
Cadence Design Systems
CDNS
$91.4B
$836K ﹤0.01%
21,175
+53
+0.3% +$1.95K
SPR
417
DELISTED
Spirit AeroSystems
SPR
$828K ﹤0.01%
+10,649
New +$737K
OFLX icon
418
Omega Flex
OFLX
$306M
$793K ﹤0.01%
11,042
– –
CRESY
419
Cresud
CRESY
$767M
$769K ﹤0.01%
45,914
-2,645
-5% -$44.6K
RVTY icon
420
Revvity
RVTY
$12.9B
$767K ﹤0.01%
+11,114
New +$745K
LW icon
421
Lamb Weston
LW
$7.12B
$747K ﹤0.01%
15,937
+40
+0.3% +$1.79K
PE
422
DELISTED
PARSLEY ENERGY INC
PE
$741K ﹤0.01%
28,125
+72
+0.3% +$1.9K
INGR icon
423
Ingredion
INGR
$6.53B
$739K ﹤0.01%
6,128
+16
+0.3% +$1.95K
MAA icon
424
Mid-America Apartment Communities
MAA
$15.4B
$729K ﹤0.01%
6,824
+17
+0.2% +$1.78K
SIVB
425
DELISTED
SVB Financial Group
SIVB
$716K ﹤0.01%
3,829
+10
+0.3% +$1.76K
15 16
17
18 19

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William Blair Investment Management's Q3 2017 Portfolio in Review

As of Q3 2017, William Blair Investment Management held 485 positions worth $27.9B, up 1.6% from $27.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $1.39B in Q3 2017, closing 52 positions and reducing 217 holdings. Its most notable exit was Amedisys, an estimated $91.9M position sold in full.

By sector, the portfolio is most concentrated in Consumer Discretionary at 15% of assets, down from 16% a quarter earlier, followed by Industrials and Financials.

Against the trend, William Blair Investment Management opened a new position in Rogers Communications worth $125M.

  • William Blair Investment Management's largest Q3 2017 buy was Rogers Communications: 2,429,600 shares worth $125M.
  • William Blair Investment Management added most to TSMC in Q3 2017, an estimated $99.8M increase.
  • William Blair Investment Management's biggest Q3 2017 reduction was O'Reilly Automotive, cutting an estimated $155M.
  • William Blair Investment Management fully exited Amedisys in Q3 2017, selling an estimated $91.9M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $27.9B portfolio in Q3 2017.
  • William Blair Investment Management opened 38 new positions and closed 52 in Q3 2017.
  • William Blair Investment Management's portfolio value rose 1.6% quarter-over-quarter to $27.9B.

Based on William Blair Investment Management's 13F filing for Q3 2017, filed 13 Nov 2017.